iOS Facebook 和 Google 同时登录？

Question

我正在尝试在同一应用中实现 google+ 和 facebook 登录。我按照 Parse 和 Google 的说明进行操作，我首先成功实现了 Facebook 登录。然后我开始按照谷歌的说明进行操作。这样做之后，现在我的 AppDelegate.swift 文件中有了这两个函数:

对于谷歌:

func application(application: UIApplication,
    openURL url: NSURL, options options: [String: AnyObject]) -> Bool {
        return GIDSignIn.sharedInstance().handleURL(url,
            sourceApplication: options[UIApplicationOpenURLOptionsSourceApplicationKey],
            annotation: options[UIApplicationOpenURLOptionsAnnotationKey])
}

对于 Facebook :

func application(application: UIApplication,
    openURL url: NSURL,
    sourceApplication: String?,
    annotation: AnyObject?) -> Bool {
        return FBSDKApplicationDelegate.sharedInstance().application(application,
            openURL: url,
            sourceApplication: sourceApplication,
            annotation: annotation)
}

我是否需要将这 2 个代码块合并为 1 个，如某些帖子中所示

Google SignIn SFSafariViewController/WebView redirects to Google.com after accepting permissions

或者他们可以在 2 个不同的街区保持这样的状态？谢谢

Answer 1

您需要将它们结合起来。最简单的方法是使用 ||在返回单上。试试这个:

func application(application: UIApplication,
    openURL url: NSURL, options: [String: AnyObject]) -> Bool {

        return FBSDKApplicationDelegate.sharedInstance().application(application, openURL: url, sourceApplication: options[UIApplicationOpenURLOptionsSourceApplicationKey] as! String, annotation: nil)  ||
            GIDSignIn.sharedInstance().handleURL(url,
            sourceApplication: options[UIApplicationOpenURLOptionsSourceApplicationKey] as? String,
            annotation: options[UIApplicationOpenURLOptionsAnnotationKey] as? String)
}